{"product_id":"acorn-sw-mw25g250-metal-to-wood-screw-2-1-2-in-250-ct","title":"Acorn SW-MW25G250 Metal to Wood Screw 2-1\/2 in 250 Ct","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACORN SW-MW25G250 is a self-piercing, self-tapping metal to wood screw engineered for roofing and siding applications. Manufactured from heat-treated C1022 steel with a case-hardened finish, each screw features a 1\/4-inch across-flat high hat hex washer head with an assembled EPDM (Ethylene Propylene Diene Monomer) washer. The washer conforms to the mating surface to create a secure, long-lasting weatherproof seal. The twin lead Type 17 point combined with hi-lo threads drives faster and resists pull-out more effectively than standard thread profiles. All screws receive a 1,000-hour salt spray tested dacro coating for corrosion resistance. Sold in a 250-count pack.\u003c\/p\u003e\n\u003cp\u003eThese screws are intended for fastening metal panels, roofing sheets, and siding to wood substrates in both residential and light commercial construction. The EPDM washer assembly makes them a go-to fastener wherever a sealed penetration is required, such as metal roofing over purlins or corrugated siding over wood framing. Installation is performed by roofing and siding contractors using standard hex-head driver bits. The 250-count pack format suits job-site quantities for production fastening work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSelf-piercing, self-tapping design eliminates the need for pre-drilling in most metal-to-wood applications\u003c\/li\u003e\n  \u003cli\u003eHeat-treated C1022 steel construction with case hardening for high shear and pull-out strength\u003c\/li\u003e\n  \u003cli\u003eAssembled EPDM washer conforms to the surface and provides a weatherproof seal at every fastener penetration\u003c\/li\u003e\n  \u003cli\u003eTwin lead Type 17 point and hi-lo threads deliver faster drive times and increased pull-out resistance\u003c\/li\u003e\n  \u003cli\u003eDacro base coating passes 1,000-hour salt spray testing for long-term corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch across-flat high hat hex washer head for use with standard hex driver bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for metal-to-wood fastening applications including metal roofing and siding panels secured to wood framing or purlin substrates in residential and light commercial construction.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by roofing and siding contractors using a hex-head driver bit matched to the 1\/4-inch across-flat head. Drive screws perpendicular to the panel surface so the EPDM washer compresses evenly and seals flush. Do not overdrive — compressing the washer excessively will deform the seal and reduce holding strength. Follow applicable building codes and manufacturer panel installation guidelines for fastener spacing and edge distances.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: High Hat Hex Washer Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Size\u003c\/strong\u003e: 1\/4 inch across flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWasher Material\u003c\/strong\u003e: EPDM (Ethylene Propylene Diene Monomer)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Twin Lead Type 17\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Hi-Lo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Heat-Treated C1022 Steel, Case Hardened\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Dacro, 1,000-Hour Salt Spray Tested\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity\u003c\/strong\u003e: 250 per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Weight\u003c\/strong\u003e: 3.967 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00810468002290\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACORN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SW-MW25G250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACORN","offers":[{"title":"Default Title","offer_id":51346720489778,"sku":"SW-MW25G250","price":42.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310547056.jpg?v=1782088370","url":"https:\/\/voomisupply.com\/products\/acorn-sw-mw25g250-metal-to-wood-screw-2-1-2-in-250-ct","provider":"Voomi Supply","version":"1.0","type":"link"}